How much castor to add to Coolpower 15% for my OS two-strokers?
My local supplier has ran out of Omega 15% fuel which I normally use for all my OS two-stokers. I can only get Coolpower 15%, typically used for helis. However, I still have a few bottles of Klotz Benol lying in my workshop. Although they are about ten years old, they still smell and look perfect with no sedimentation. I guess they are still safe to use. The question is how much castor should I add to each bottle of Coolpower 15%? In any case, I would have to retune my engines and hope the idling will be still good. Thanks for all the inputs in advance!